Protecting a Business Before Marriage

Understand what happens with no planning at all

Without a marital agreement, a business owned before marriage may still be treated as separate property, but its appreciation during the marriage, or a spouse's contributions to its growth, can become a marital asset subject to division. A business started during the marriage is generally treated as a marital asset regardless of whose name is on it. This baseline is the reference point against which every protective tool below should be measured.

Decide whether a prenuptial or postnuptial agreement is the primary tool

A prenuptial agreement, negotiated and signed before the wedding with full financial disclosure, is generally the most direct way to define a business as separate property and to address how its appreciation during the marriage will be treated. Where the wedding has already occurred, a postnuptial agreement can achieve similar goals, though it involves its own considerations since the parties are already married when they negotiate.

Layer in entity structure and governance protections

Even with a marital agreement, the business's own governance documents matter. An operating agreement or shareholder agreement can restrict the transfer of ownership interests to a spouse in the event of divorce, require a buyout at a defined valuation methodology and keep other owners' interests insulated from one owner's marital dispute. Where multiple owners are involved, this layer protects the business independent of what any one owner's personal marital agreement provides.

Address commingling before it happens, not after

Even a business that starts as separate property can become partially marital if marital funds are invested in it, if a spouse contributes labor to its growth, or if business and personal finances are not kept distinct. Maintaining separate accounting, documenting any capital contributions from marital funds and paying the owner-spouse a market-rate salary rather than reinvesting everything informally all reduce commingling risk over time.

Sequence the decision against the business timeline

Where marriage and a business's early growth phase are happening around the same time, addressing both the marital agreement and the entity's governance documents together, rather than sequentially months apart, avoids gaps where one document assumes something the other does not yet reflect.

Common mistakes in this decision

• Relying on a prenuptial agreement alone while leaving the entity's own governance documents silent on a spouse's potential interest.
• Waiting until shortly before the wedding to begin drafting, leaving little time for disclosure and negotiation.
• Commingling business and personal finances after marriage despite having a marital agreement in place.
• Assuming a business owned before marriage is fully protected without addressing its appreciation during the marriage.
• Failing to update either the marital agreement or governance documents after a significant change in the business.